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Blower Motor Relay: Testing and Inspection
Fig. 12 Heater Main Relay Terminals.:
1.
Remove main heater relay.
2.
Using ohmmeter, measure resistance between terminals 1 and 2,
Fig. 12. Resistance should be 50-80 ohms.
3.
Apply 12 volt battery voltage across terminals 1 and 2. Check for continuity between terminals 3 and 4.
4.
Replace switch if defective.
